Honnestly, I stop using notifications. I mean, I don't really need to be disturbed with notifications: if I want to check my emails, or Whatsapp messages, I start the app. It feels like I'm more efficient without notifications.
A good for a bad.
But a stock Android Pie would be great...

Dang! It's a real mess: I missed email and other notifications. Even a call, how's that possible with a stock ROM!?
F! I tried AEX 6, claimed to be an alpha ROM and it's working!
Does Zuk have a direct channel? Our chinese's Z2 Pro collegues-owners suffers the same issues?